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Judas Ear Cassidula

Ellobium aurisjudae

  • Molluscs
  • IUCN: Least concern
  • Water temperature23–30 °C
  • Best monthsJanuary, June, and August
  • How commonRare
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Photo credit: (c) Attila Oláh, some rights reserved (CC BY), uploaded by Attila Oláh · CC BY · iNaturalist

About this species

Ellobium aurisjudae is a species of gastropods belonging to the family Ellobiidae.

Text from the Wikipedia article “Ellobium aurisjudae”, licensed CC BY-SA 4.0. Read the article

Where and when

Where it has been recorded

Worldwide

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Best months

Worldwide (open data)

  • January: 26 records
  • February: 5 records
  • March: 7 records
  • April: 9 records
  • May: 13 records
  • June: 16 records
  • July: 15 records
  • August: 24 records
  • September: 16 records
  • October: 11 records
  • November: 11 records
  • December: 7 records

Depth and water temperature

Water temperature

Recorded in surface water of 23–30 °C

  • 22–24 °C: 12 records
  • 24–26 °C: 33 records
  • 26–28 °C: 34 records
  • 28–30 °C: 63 records

Names and classification

English
Judas Ear Cassidula
Names in 1 more languages
French
Auricule de Judas

Other scientific names: Auricula (Auricula) judae, Auricula aurisjudae, Auricula australiana, Auricula dactylus, Auricula percha, Auricula polita, Auricula reticulata, Auricula turrita, Bulla aurisjudae, Ellobium (Ellobium) aurisjudae, Ellobium dactylus, Ellobium labrosum, Ellobium politum, Ellobium subtile, Voluta aurisjudae

Similar species

Sources and credits

Names and taxonomy: WoRMS (CC BY 4.0) and the GBIF Backbone (CC BY 4.0). Photos: iNaturalist observers, each under the licence shown (CC0, CC BY or CC BY-SA).

  • Depth, temperature, months and maps: records from OBIS and GBIF under CC0 or CC BY.
  • Descriptions: Wikipedia, licensed CC BY-SA, each linked to its article.
  • Conservation status as published by GBIF (IUCN Red List).
  • 244 open-data records from 1758 to 2010.
  • Species data updated October 26, 2026.

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